I'd like to see Superman's world not confined to just 2-3 villains (the usual suspects Lex Luthor, Zod & his minions). I want to see other villains or characters in future sequels such as Brainiac, Parasite, Toyman, Darkseid, Metallo, & perhaps scratch a little of the surface of Apokolips since that's Darkseid's homeworld & get introduced to Mr. Miracle, etc.